Kissing The Camera flashed past the post to take the NGK Spark Plugs EBF Maiden Fillies' Stakes at Newmarket.
Jeremy Noseda's juvenile was always up with the pace under Ryan Moore and the 3-1 chance kept finding on her debut to deny 11-4 favourite Misdaqeya by a neck.
The daughter of Galileo is now bound for Royal Ascot.
Noseda said: "That was a good, solid performance and she will improve for the race.
"We'll have a tilt at the Chesham now and she will get seven furlongs no problem.
"She is by Galileo, but her dam was very quick and there is plenty of speed on that side of the family."
Ask The Butler landed a gamble on his first start for Luca Cumani in the Frontrunner For Windows Handicap.
The four-year-old, who raced for Tony Carroll last year, was backed as if defeat was out of the question on his debut for the shrewd Italian maestro.
Having opened at 12-1, he was punted down to 11-2 and overcame trouble in running under Dane O'Neill to end up a ready half-length winner.
Cumani said: "I am very pleased and very surprised.
"I don't know much about him as he only came to us at the beginning of the year. Today was a fact-finding mission and I am delighted as he has done it so well.
"The mile and a quarter suited him well and he'd have no problem getting a mile and a half."
Ancient Lights shone on his debut at Headquarters as Henry Cecil saddled him to a taking victory in the Sias Building Services Anniversary Maiden Stakes over 10 furlongs.
The son of Derby winner High Chaparral drifted out to 5-2 before being returned the 2-1 favourite in the hands of Eddie Ahern.
The imposing colt raced up with the pace and needed minimal assistance from the saddle in claiming the scalp of Meethaaq by a length and a quarter.
Cecil said: "He has suffered quarter-cracks all his life and was only just ready to race as he has not been in work very long.
"He has the potential to be a horse to look forward to as he has a little class. He could be nice.
"Time will tell and this was only his first race, but he is in the King Edward VII and the Hampton Court at Royal Ascot and I think he will get a mile and a half."